anyone use thermal paste on their motors/heatsinks?

the thickness of the compound will depend on how well the surfaces mate, and how well polished they are. If the finish is rough, there is more irregularity in the surface, and it will take more paste to fill the gaps. If you polish the motor and the sink, you can use less. Ideally the less you use the better, but only if it's an adequate amount to ensure consistent contact between surfaces.

J.